{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"d30576ef589d1225c28dbea1a3726b367e19fc97373549892d13ea8b813cedce","created":"2026-10-03T07:17:51Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"a21cef6970e8e0e6936c46495f5aa9c125ca69c2bdf008843fcbda80150e6e21","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"earth.amoc-ice-tipping","field":"earth","n":"1","review_cite":"D. I. Armstrong McKay et al., Exceeding 1.5C global warming could trigger multiple climate tipping points, Science, 2022","review_link":"https://doi.org/10.1126/science.abn7950","review_verified":"true","summary":"The Atlantic overturning circulation carries warm water north, and the West Antarctic ice sheet rests on bedrock below sea level. Both may have thresholds beyond which they change abruptly and do not recover.","title":"Ocean overturning and ice-sheet tipping points","topic_ref":null,"why":"Crossing these thresholds would reorganize regional climate and raise sea level by meters over centuries."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"7fc551459998c7e7a33c78a6d1d9264023c488edce1886a95542649f021e0b20","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"62bf0f60a9acec0ef214597a5f278fc4c4891104b95361e40092f82fb974bb74","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"muUe7-0iZyRJvO1jL6OWSKD2fqS0Y1zxe6bpH_rWkixEZ_54Y0DfaUlF7gzTIzQFrk4gdashR3KevimT4BkACw"},"schema":"pubphys.envelope/1"},"record_hash":"7fc551459998c7e7a33c78a6d1d9264023c488edce1886a95542649f021e0b20","leaf_index":194}